Percutaneous radio-frequency ablation of hepatic metastases from colorectal cancer: long-term results in 117 patients.

Purpose: To describe the results of an ongoing radio-frequency (RF) ablation study in patients with hepatic metastases from colorectal carcinoma.

Materials And Methods: In 117 patients, 179 metachronous colorectal carcinoma hepatic metastases (0.9-9.

Liver cancer imaging: the need for accurate detection of intrahepatic disease spread.

The last ten years have seen dramatic changes in the therapeutic approach to both primary (i.e., hepatocellular carcinoma: HCC) and secondary (i.

Percutaneous ethanol injection of autonomously functioning thyroid nodule.

Percutaneous ethanol injection (PEI) is proposed for treatment of autonomously functioning thyroid nodule, especially for small-mid-sized solitary nodules, for patients refusing the other methods or not proving responsive to radioiodine, or for patients with non toxic nodule. The injection is performed under color Doppler sonography guidance, evaluating the most vascularized areas of the tumor where to primarily inject ethanol solution with 21-22 gauge needles. Serum TSH, FT4, FT3 and TG levels are measured before each treatment session and 3,6,12,24 and 36 months after the end of therapy.

Radio-frequency ablation of hepatic metastases: postprocedural assessment with a US microbubble contrast agent--early experience.

Purpose: To evaluate contrast agent-enhanced ultrasonography (US) in the detection of untreated tumor after radio-frequency (RF) ablation of hepatic metastases.

Materials And Methods: Twenty patients with solitary colorectal liver metastases underwent percutaneous RF tumor ablation. Pre- and postablation imaging was performed with nonenhanced and enhanced color and power Doppler US and contrast-enhanced helical computed tomography (CT).

[Neuroleptanalgesia in patients undergoing percutaneous, ultrasound-directed radiofrequency for primary or secondary, single or multiple hepatic neoplasms].

Background: The use of percutaneous ultrasound-directed radiofrequency is a recent technique in non-surgical therapy of some neoplastic liver lesions. Purpose of this study is to demonstrate that the use of a narcosis-free analgesia allows to perform this procedure, which is generally painful and badly by the patient.

Methods: We treated 51 patients for a total of 126 procedures; the first 17 patients underwent a mono- or multipolar technique with uncooled electrodes, while the remaining 34 patients have been treated with double perfusion lumen electrodes with the chance of tipcooling.